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You need to find another company to do the rebuild. These rear-ends typically last several hundred K. The outer bearings are the only thing I've seen go bad in our ~200+ miles of experience. If the differential gears are still OK, you can have the axle shaft bearing surfaces repaired by a company that redoes crankshafts. You do need to drain & replace the synthetic rear end oil every 60K.

Bill Payne
American Limousine, LLC
Lake Wylie, SC
704.576.5309
Celebrating 9 years of superior service to the Charlotte, NC market. Serving corporate and individual clients with sedans, vans and limousines.

You need to find another company to do the rebuild. These rear-ends typically last several hundred K. The outer bearings are the only thing I've seen go bad in our ~200+ miles of experience. If the differential gears are still OK, you can have the axle shaft bearing surfaces repaired by a company that redoes crankshafts. You do need to drain & replace the synthetic rear end oil every 60K.

At this moment, all the gears, and axle shafts are worn out, may be the bearings are okay, but that's the least of the cost. I was wondering if there is a way I can purchase a used Ford F-150 rear end and use it here; but I am not sure if this would fit, or if this has been done before.

Yes, I needed the right guy to rebuild this earlier, and I was able to find who could assure the newly built rear end would go easily 100k... Anyways, I had short time to fix this, and I found out that 2006 town car (regular) has heavy duty, and so does 2006 and above Crown Vic has heavy duty rear end. We put a used one that has low mileage in; we did have to change the calipers, rotors and brakes to accommodate this. So far after 200 miles on it, its okay. I will know more afterr 10-20k.

How has that rear end held up for you so far ? How did you find out about the 06 and above being better ?
I'm in the same situation have 03 120" with a regular rear end in it not a limo rear end .. any help is appreciated

I had the same problem with my 2006. I had a local garage rebuild the rear end with racing gears. They are a lot harder and supposed to last a lot longer. That was in July '15. So far so good. I also tried to find a used reared but at the end of the day, it was still used and could already have 300k miles on it. I found this rebuild was about the same price.

So far so good; its holding well. I checked the oil last week and its a little dirty only. I think I will change rear end oil in 3-5 k or sooner. Somehow, regular rear end (non limo ), are easier to deal with. Their parts, and everything is also cheaper and quicker to deal with. They sure will not last as long, but if I get 30-40k out of this thing, I am okay.